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<li class="navelem"><a class="el" href="namespacefaiss.html">faiss</a></li><li class="navelem"><a class="el" href="structfaiss_1_1ParameterSpace.html">ParameterSpace</a></li>  </ul>
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<a href="#pub-methods">Public Member Functions</a> &#124;
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<p><code>#include &lt;<a class="el" href="AutoTune_8h_source.html">AutoTune.h</a>&gt;</code></p>
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Inheritance diagram for faiss::ParameterSpace:</div>
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  <img src="structfaiss_1_1ParameterSpace.png" usemap="#faiss::ParameterSpace_map" alt=""/>
  <map id="faiss::ParameterSpace_map" name="faiss::ParameterSpace_map">
<area href="structfaiss_1_1gpu_1_1GpuParameterSpace.html" title="parameter space and setters for GPU indexes " alt="faiss::gpu::GpuParameterSpace" shape="rect" coords="0,56,188,80"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a488329e3c1f08b9980d8e0f9c1491c75"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a488329e3c1f08b9980d8e0f9c1491c75"></a>
size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#a488329e3c1f08b9980d8e0f9c1491c75">n_combinations</a> () const </td></tr>
<tr class="memdesc:a488329e3c1f08b9980d8e0f9c1491c75"><td class="mdescLeft">&#160;</td><td class="mdescRight">nb of combinations, = product of values sizes <br/></td></tr>
<tr class="separator:a488329e3c1f08b9980d8e0f9c1491c75"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7cdedaf4bab33293771c4267d453a950"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7cdedaf4bab33293771c4267d453a950"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#a7cdedaf4bab33293771c4267d453a950">combination_ge</a> (size_t c1, size_t c2) const </td></tr>
<tr class="memdesc:a7cdedaf4bab33293771c4267d453a950"><td class="mdescLeft">&#160;</td><td class="mdescRight">returns whether combinations c1 &gt;= c2 in the tuple sense <br/></td></tr>
<tr class="separator:a7cdedaf4bab33293771c4267d453a950"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7bb416dbab456bb1ecd9ace433fa5312"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7bb416dbab456bb1ecd9ace433fa5312"></a>
std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#a7bb416dbab456bb1ecd9ace433fa5312">combination_name</a> (size_t cno) const </td></tr>
<tr class="memdesc:a7bb416dbab456bb1ecd9ace433fa5312"><td class="mdescLeft">&#160;</td><td class="mdescRight">get string representation of the combination <br/></td></tr>
<tr class="separator:a7bb416dbab456bb1ecd9ace433fa5312"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa4bb1f0008689903aa936baee61d09d0"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa4bb1f0008689903aa936baee61d09d0"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#aa4bb1f0008689903aa936baee61d09d0">display</a> () const </td></tr>
<tr class="memdesc:aa4bb1f0008689903aa936baee61d09d0"><td class="mdescLeft">&#160;</td><td class="mdescRight">print a description on stdout <br/></td></tr>
<tr class="separator:aa4bb1f0008689903aa936baee61d09d0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aeaa27a715fe3fceef5da18d894976833"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aeaa27a715fe3fceef5da18d894976833"></a>
<a class="el" href="structfaiss_1_1ParameterRange.html">ParameterRange</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#aeaa27a715fe3fceef5da18d894976833">add_range</a> (const char *name)</td></tr>
<tr class="memdesc:aeaa27a715fe3fceef5da18d894976833"><td class="mdescLeft">&#160;</td><td class="mdescRight">add a new parameter (or return it if it exists) <br/></td></tr>
<tr class="separator:aeaa27a715fe3fceef5da18d894976833"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9304975f379738eda384385eace8ad76"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9304975f379738eda384385eace8ad76"></a>
virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#a9304975f379738eda384385eace8ad76">initialize</a> (const <a class="el" href="structfaiss_1_1Index.html">Index</a> *index)</td></tr>
<tr class="memdesc:a9304975f379738eda384385eace8ad76"><td class="mdescLeft">&#160;</td><td class="mdescRight">initialize with reasonable parameters for the index <br/></td></tr>
<tr class="separator:a9304975f379738eda384385eace8ad76"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a55783994cee46e9181bad2b3a7a973f4"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a55783994cee46e9181bad2b3a7a973f4"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#a55783994cee46e9181bad2b3a7a973f4">set_index_parameters</a> (<a class="el" href="structfaiss_1_1Index.html">Index</a> *index, size_t cno) const </td></tr>
<tr class="memdesc:a55783994cee46e9181bad2b3a7a973f4"><td class="mdescLeft">&#160;</td><td class="mdescRight">set a combination of parameters on an index <br/></td></tr>
<tr class="separator:a55783994cee46e9181bad2b3a7a973f4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aef1f2af781a71e7f0cf6f67603ef7cc1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#aef1f2af781a71e7f0cf6f67603ef7cc1">set_index_parameters</a> (<a class="el" href="structfaiss_1_1Index.html">Index</a> *index, const char *param_string) const </td></tr>
<tr class="memdesc:aef1f2af781a71e7f0cf6f67603ef7cc1"><td class="mdescLeft">&#160;</td><td class="mdescRight">set a combination of parameters described by a string  <a href="#aef1f2af781a71e7f0cf6f67603ef7cc1">More...</a><br/></td></tr>
<tr class="separator:aef1f2af781a71e7f0cf6f67603ef7cc1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac630c153ffd12f9994452c92fe57dc17"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac630c153ffd12f9994452c92fe57dc17"></a>
virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#ac630c153ffd12f9994452c92fe57dc17">set_index_parameter</a> (<a class="el" href="structfaiss_1_1Index.html">Index</a> *index, const std::string &amp;name, double val) const </td></tr>
<tr class="memdesc:ac630c153ffd12f9994452c92fe57dc17"><td class="mdescLeft">&#160;</td><td class="mdescRight">set one of the parameters <br/></td></tr>
<tr class="separator:ac630c153ffd12f9994452c92fe57dc17"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab7039882ec68aabc6c52cff883f75c28"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#ab7039882ec68aabc6c52cff883f75c28">update_bounds</a> (size_t cno, const <a class="el" href="structfaiss_1_1OperatingPoint.html">OperatingPoint</a> &amp;op, double *upper_bound_perf, double *lower_bound_t) const </td></tr>
<tr class="separator:ab7039882ec68aabc6c52cff883f75c28"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a57728d29c4785d9003b9cd564d0c51b2"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#a57728d29c4785d9003b9cd564d0c51b2">explore</a> (<a class="el" href="structfaiss_1_1Index.html">Index</a> *index, size_t nq, const float *xq, const <a class="el" href="structfaiss_1_1AutoTuneCriterion.html">AutoTuneCriterion</a> &amp;crit, <a class="el" href="structfaiss_1_1OperatingPoints.html">OperatingPoints</a> *ops) const </td></tr>
<tr class="separator:a57728d29c4785d9003b9cd564d0c51b2"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a334c1bb54bc2b70950a4a63950728cbb"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a334c1bb54bc2b70950a4a63950728cbb"></a>
std::vector&lt; <a class="el" href="structfaiss_1_1ParameterRange.html">ParameterRange</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#a334c1bb54bc2b70950a4a63950728cbb">parameter_ranges</a></td></tr>
<tr class="memdesc:a334c1bb54bc2b70950a4a63950728cbb"><td class="mdescLeft">&#160;</td><td class="mdescRight">all tunable parameters <br/></td></tr>
<tr class="separator:a334c1bb54bc2b70950a4a63950728cbb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7a9f2292c4e0ac3aad569434edea87b0"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7a9f2292c4e0ac3aad569434edea87b0"></a>
int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#a7a9f2292c4e0ac3aad569434edea87b0">verbose</a></td></tr>
<tr class="memdesc:a7a9f2292c4e0ac3aad569434edea87b0"><td class="mdescLeft">&#160;</td><td class="mdescRight">verbosity during exploration <br/></td></tr>
<tr class="separator:a7a9f2292c4e0ac3aad569434edea87b0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a76aeae25b3269fb24a26194fbe013b86"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a76aeae25b3269fb24a26194fbe013b86"></a>
int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#a76aeae25b3269fb24a26194fbe013b86">n_experiments</a></td></tr>
<tr class="memdesc:a76aeae25b3269fb24a26194fbe013b86"><td class="mdescLeft">&#160;</td><td class="mdescRight">nb of experiments during optimization (0 = try all combinations) <br/></td></tr>
<tr class="separator:a76aeae25b3269fb24a26194fbe013b86"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aee8fd44e15656ba80fe98de4c65ed767"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aee8fd44e15656ba80fe98de4c65ed767"></a>
size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#aee8fd44e15656ba80fe98de4c65ed767">batchsize</a></td></tr>
<tr class="memdesc:aee8fd44e15656ba80fe98de4c65ed767"><td class="mdescLeft">&#160;</td><td class="mdescRight">maximum number of queries to submit at a time. <br/></td></tr>
<tr class="separator:aee8fd44e15656ba80fe98de4c65ed767"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af6dc3b9c5631b509cbae99bf0f24170b"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1ParameterSpace.html#af6dc3b9c5631b509cbae99bf0f24170b">thread_over_batches</a></td></tr>
<tr class="separator:af6dc3b9c5631b509cbae99bf0f24170b"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Uses a-priori knowledge on the Faiss indexes to extract tunable parameters. </p>

<p>Definition at line <a class="el" href="AutoTune_8h_source.html#l00132">132</a> of file <a class="el" href="AutoTune_8h_source.html">AutoTune.h</a>.</p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a class="anchor" id="a57728d29c4785d9003b9cd564d0c51b2"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void faiss::ParameterSpace::explore </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structfaiss_1_1Index.html">Index</a> *&#160;</td>
          <td class="paramname"><em>index</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>nq</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const float *&#160;</td>
          <td class="paramname"><em>xq</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structfaiss_1_1AutoTuneCriterion.html">AutoTuneCriterion</a> &amp;&#160;</td>
          <td class="paramname"><em>crit</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="structfaiss_1_1OperatingPoints.html">OperatingPoints</a> *&#160;</td>
          <td class="paramname"><em>ops</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
        </tr>
      </table>
</div><div class="memdoc">
<p>explore operating points </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">index</td><td>index to run on </td></tr>
    <tr><td class="paramname">xq</td><td>query vectors (size nq * index.d) </td></tr>
    <tr><td class="paramname">crit</td><td>selection criterion </td></tr>
    <tr><td class="paramname">ops</td><td>resutling operating points </td></tr>
  </table>
  </dd>
</dl>

<p>Definition at line <a class="el" href="AutoTune_8cpp_source.html#l00555">555</a> of file <a class="el" href="AutoTune_8cpp_source.html">AutoTune.cpp</a>.</p>

</div>
</div>
<a class="anchor" id="aef1f2af781a71e7f0cf6f67603ef7cc1"></a>
<div class="memitem">
<div class="memproto">
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          <td class="memname">void faiss::ParameterSpace::set_index_parameters </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structfaiss_1_1Index.html">Index</a> *&#160;</td>
          <td class="paramname"><em>index</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>param_string</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>set a combination of parameters described by a string </p>
<p>set a combination of parameters on an index </p>

<p>Definition at line <a class="el" href="AutoTune_8cpp_source.html#l00424">424</a> of file <a class="el" href="AutoTune_8cpp_source.html">AutoTune.cpp</a>.</p>

</div>
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<a class="anchor" id="ab7039882ec68aabc6c52cff883f75c28"></a>
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          <td class="memname">void faiss::ParameterSpace::update_bounds </td>
          <td>(</td>
          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>cno</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structfaiss_1_1OperatingPoint.html">OperatingPoint</a> &amp;&#160;</td>
          <td class="paramname"><em>op</em>, </td>
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        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double *&#160;</td>
          <td class="paramname"><em>upper_bound_perf</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double *&#160;</td>
          <td class="paramname"><em>lower_bound_t</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
        </tr>
      </table>
</div><div class="memdoc">
<p>find an upper bound on the performance and a lower bound on t for configuration cno given another operating point op </p>

<p>Definition at line <a class="el" href="AutoTune_8cpp_source.html#l00541">541</a> of file <a class="el" href="AutoTune_8cpp_source.html">AutoTune.cpp</a>.</p>

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<h2 class="groupheader">Member Data Documentation</h2>
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          <td class="memname">bool faiss::ParameterSpace::thread_over_batches</td>
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<p>use multithreading over batches (useful to benchmark independent single-searches) </p>

<p>Definition at line <a class="el" href="AutoTune_8h_source.html#l00149">149</a> of file <a class="el" href="AutoTune_8h_source.html">AutoTune.h</a>.</p>

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<hr/>The documentation for this struct was generated from the following files:<ul>
<li>/data/users/matthijs/github_faiss/faiss/<a class="el" href="AutoTune_8h_source.html">AutoTune.h</a></li>
<li>/data/users/matthijs/github_faiss/faiss/<a class="el" href="AutoTune_8cpp_source.html">AutoTune.cpp</a></li>
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